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    Quadro M620 vs Radeon HD 6990M Crossfire

    If you are going to buy a new graphics card and are choosing between Quadro M620 and Radeon HD 6990M Crossfire, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Quadro M620 stacks up against Radeon HD 6990M Crossfire, check out specs charts below.
    Quadro M620 Check Price
    Radeon HD 6990M Crossfire Check Price

    Quadro M620 and Radeon HD 6990M Crossfire are Laptop Graphics Cards

    Note: Quadro M620 and Radeon HD 6990M Crossfire are only used in laptop graphics. They have lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Quadro M620 or Radeon HD 6990M Crossfire here:

    Quadro M620 Laptops
    Radeon HD 6990M Crossfire Laptops

    Main Specs

      Quadro M620 Radeon HD 6990M Crossfire
    Power consumption (TDP) 30 Watt
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 GB 2x2 GB
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    • Quadro M620 and Radeon HD 6990M Crossfire have maximum RAM of 2 GB.
    • Quadro M620 is used in Mobile workstations, and Radeon HD 6990M Crossfire - in Laptops.
    • Quadro M620 is build with Maxwell architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of Quadro M620 is 303 MHz higher, than Radeon HD 6990M Crossfire.
    • Quadro M620 is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
    • Memory clock speed of Quadro M620 is 4112 MHz higher, than Radeon HD 6990M Crossfire.

    Game benchmarks

    high / 1080p 14−16 35−40
    ultra / 1080p 8−9 21−24
    QHD / 1440p 3−4 16−18
    4K / 2160p − 10−11
    low / 720p 30−35 60−65
    medium / 1080p 18−20 40−45
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 140% more, than Quadro M620.

    Full Specs

      Quadro M620 Radeon HD 6990M Crossfire
    Architecture Maxwell Terascale 2
    Code name Blackcomb XTX
    Type Mobile workstation Laptop
    Release date 13 January 2017 12 July 2011
    Pipelines 512 2240
    Core clock speed 1018 MHz 715 MHz
    Transistor count 2x1700 Million
    Manufacturing process technology 28 nm 40 nm
    Memory bus width 128 Bit 256 Bit
    Memory clock speed 5012 MHz 900 MHz
    Memory bandwidth 80 GB/s
    Shared memory - -
    DirectX 12 DirectX 11, Shader 5.0
    Shader Model 5.0
    OpenGL 4.5
    Laptop size large large
    Optimus +
    Display Port 1.2
    Mosaic +
    nView Display Management +
    3D Stereo +
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